scholarly journals Can Electric Field be a Descriptor of Catalytic Activity? A Case Study on Chorismate Mutase

Author(s):  
Shakir Ali Siddqui ◽  
Kshatresh Dubey
Author(s):  
Shakir Ali Siddiqui ◽  
Kshatresh Dutta Dubey

The current theoretical perception of enzymatic activity is highly reliant on the determination of activation energy of the reactions which is often calculated using a computational demanding quantum mechanical calculation....


2021 ◽  
Author(s):  
Yuki Omori ◽  
Ayaka Shigemoto ◽  
Kohei Sugihara ◽  
Takuma Higo ◽  
Toru Uenishi ◽  
...  

Pd catalyst (Pd/Ce<sub>0.7</sub>Zr<sub>0.3</sub>O<sub>2</sub>) in an electric field exhibits extremely high three-way catalytic activity (TWC: NO-C<sub>3</sub>H<sub>6</sub>-CO-O<sub>2</sub>-H<sub>2</sub>O). By applying an electric field to the semiconductor catalyst, low-temperature operation of TWC can be achieved even at 473 K by virtue of the activated surface-lattice oxygen.


2018 ◽  
Vol 6 (45) ◽  
pp. 22497-22502 ◽  
Author(s):  
Ying Pan ◽  
Hangjuan Ren ◽  
Haiwei Du ◽  
Fuyang Cao ◽  
Yifeng Jiang ◽  
...  

Enhanced catalytic activity of Co3O4@CoSx through surface sulfurization.


2015 ◽  
Vol 51 (47) ◽  
pp. 9636-9639 ◽  
Author(s):  
Wen-Yang Gao ◽  
Tony Pham ◽  
Katherine A. Forrest ◽  
Brian Space ◽  
Lukasz Wojtas ◽  
...  

Investigations of CO2 adsorption in two rht-MOFs indicated that the local electric field favours more than the exposed nitrogen atoms for the interactions with CO2 molecules.


Author(s):  
Krishna Chytanya Chinnam ◽  
Arnaldo Casalotti ◽  
Giulia Lanzara

Abstract In this paper the dynamic response of an electrospun nanocomposite piezoelectric microfiber is investigated. The microfiber is formed by magnetic nanoparticles dispersed in Polyvinylidene (PVDF) matrix. Focus is given on the influence of an AC electric field on the dynamic response of the microfiber. In particular, the resonance frequency of the fiber was assessed under an increasing AC electric field at a wide range of frequencies. The electromechanical test results show that the resonance frequency of the fiber is influenced by the applied voltage and, for this case study, it decreases with increasing voltage. The results reported in this paper suggest that, once the mechanism behind such response is fully understood, composite piezoelectric microfibers can be used to fine-tune the resonance frequency of hosting devices.


2015 ◽  
Vol 2015 ◽  
pp. 1-10
Author(s):  
A. Paffi ◽  
F. Apollonio ◽  
R. Pinto ◽  
M. Liberti

Previous studies identified the train compartment as the place where people can experience the highest exposure levels (still below the international guideline limits) to electromagnetic fields in the radiofrequency range. Here a possible scenario of a train compartment has been reproduced and characterized, both numerically and experimentally. A good agreement between the simulated electric field distributions and measurements has been found. Results indicate that the higher values of exposure in specific positions inside the train compartment depend on the number of active cell phones, the bad coverage condition, the cell orientation, and the presence of metallic walls. This study shows that the proposed approach, based on the scenarios characterization, may efficiently support the assessment of the individual electromagnetic exposure.


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